I need some quick help. I may have found some 289 hipo heads (so claims the seller) for 150 bucks complete. He told me they had screw in studs and hasnt answered me back yet if there are one or two dots above the 289 that is cast into the top. I know there are other differences.like the cupped spring seats. He sent me aome pics but they are really bad (phone pics) I i can see the rocker arms and they appear to be the stamped steel rockers like off a 69 boss. Im not very fmiliar with anything other than the rail type rockera my 67 has. He gave me a cast date of 4E10 he says they came off a 65 four barrel 289...they are a good 100 milesbfrom me and before i drive that far i wanna be sure. Thanks.
289 Head Id
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woodsnake
15 Year Member
Cylinder Heads
Our greatest fascination with the 289 Hi-Po is likely its unique cylinder heads. Urban legend has always given the Hi-Po head larger ports and valves than other small-block Fords, which has never been true. Valvespring pockets for stability and screw-in rocker-arm studs for dependability make the Hi-Po head unique, because the more common press-in studs tend to pull out with aggressive camshafts and high revs. Outside of these factory modifications, the Hi-Po heads are virtually the same as the 2V/4V heads. Spotting a 19, 20, or 21 cavity number in the corners of the castings outside of the valve-cover areas on the exhaust side quickly identifies Hi-Po heads.
Enter text here.These heads were fitted with stiffer valvesprings for obvious reasons: to reliably slap the valves closed at high revs. Spring pressure was approximately 350 pounds on the Hi-Po heads. Smaller damper springs were also used.
Look for casting numbers C3OE, C4OE-B, C5OE-A, C5AE-E, C7ZE (service head), and C8ZE-B (also a service head). The C8ZE-B service head does not have the two-digit cavity number mentioned earlier
Read more: http://www.mustangmonthly.com/howto/mump_0505_289_high_performance_small_block_mustang_engine/viewall.html#ixzz20ZSQIZij
Our greatest fascination with the 289 Hi-Po is likely its unique cylinder heads. Urban legend has always given the Hi-Po head larger ports and valves than other small-block Fords, which has never been true. Valvespring pockets for stability and screw-in rocker-arm studs for dependability make the Hi-Po head unique, because the more common press-in studs tend to pull out with aggressive camshafts and high revs. Outside of these factory modifications, the Hi-Po heads are virtually the same as the 2V/4V heads. Spotting a 19, 20, or 21 cavity number in the corners of the castings outside of the valve-cover areas on the exhaust side quickly identifies Hi-Po heads.
Enter text here.These heads were fitted with stiffer valvesprings for obvious reasons: to reliably slap the valves closed at high revs. Spring pressure was approximately 350 pounds on the Hi-Po heads. Smaller damper springs were also used.
Look for casting numbers C3OE, C4OE-B, C5OE-A, C5AE-E, C7ZE (service head), and C8ZE-B (also a service head). The C8ZE-B service head does not have the two-digit cavity number mentioned earlier
Read more: http://www.mustangmonthly.com/howto/mump_0505_289_high_performance_small_block_mustang_engine/viewall.html#ixzz20ZSQIZij
woodsnake
15 Year Member
I have already been there lol. Until i get my last text answered from him my biggest red flags are those later model stamped (self aligning i think) rocker arms and the date code. That code could mean 64 or 74....i am leaning toward those being 74 351 heads...i wish his picture were better and he didnt sound like he had an iq of 50...
I can verify with 90% certainty the rockers are fulcrum type...maybe these are some 5.0 heads?
I can verify with 90% certainty the rockers are fulcrum type...maybe these are some 5.0 heads?
woodsnake
15 Year Member
horse sence
15 Year Member
i cant tell you how many times i have gone to look at a supossed 302 boss
and had it turn out to be a 2 v 302 or even a 289 ,then have the guy argue with me when i tell him what it realy is, hipo`s are the same way but you know you are going to look any way. there is always that chance
and had it turn out to be a 2 v 302 or even a 289 ,then have the guy argue with me when i tell him what it realy is, hipo`s are the same way but you know you are going to look any way. there is always that chance
it is truly amazing just how many "boss 302s" ford made from 1968 to 1985 isnt it?
Couped Up
Member
Actually, "their" statement about the C8ZE-B head, not having the two-digit number is incorrect. The main difference between the later service heads, and the pre '67 models are the letters HP cast in the top, and the later style intake flange....
woodsnake
15 Year Member
I only cut and pasted the article, however the magazine editor might like to know about that particular detail.
I just wanted to give some quick info on how to ID the "Hi-Po" heads....
(the link posted goes to the original article in the magazine....)
I just wanted to give some quick info on how to ID the "Hi-Po" heads....
(the link posted goes to the original article in the magazine....)
Couped Up
Member
Sorry Woodsnake; I made a correction to my response above. Throughout the years there have been many myths about the factory HIPO parts, and the devout HIPO experts, have sought most of their answers from Mannels book, and have adopted it as their book of reference. I believe that this is where this particular myth found it's origin. Whatever be the case, a few years back, I had several K-code guys, calling me, and telling me all about some "C8ZE-B" heads I had for sale. They had told me they weren't real "HIPO" heads, because they wouldn't have the 19, 20, or 21 casting numbers! I explained to them that Mine did, and they said that that would disprove all the known history that had been compiled about these parts. OK..... So I took a few pics, and submitted them to Mustangtek, for their head identification section. The gentleman at Mustangtek was very pleased, and asked for some more pics that clearly shows the corner casting numbers, but I haven't gotten around to it as of yet.....If you check out the C8ZE-B section, you'll notice that I've submitted a photo of a head cast in Aug. of '67, as well as a head cast in Oct. of '69. The intake/chamber side of the casting is clearly a C8OE casting, while the top is the standard 289, double dot. with the addition of the letters HP. They were both cast with the exhaust flange provisions for a thermactor port, but neither came with the injector, or bulge installed. If you look carefully at the pictures, you'll notice the numbers 20, and 21 referenced on the lower side of the intake area, and 20 cast into the '67 head, in the outside corner where usually found on the earlier designs. The other head sports a number 22, below the plug hole. You'll also note that Ford merely ground off the C8OE, and re-stamped it on the '67 casting. I've personally seen these heads with casting dates into 1970.
On another note...... I would truly like to know the earliest a person could obtain a set of Hipo's over the counter, as that would really designate the years for "Service" parts......
Just my .02 sense...
On another note...... I would truly like to know the earliest a person could obtain a set of Hipo's over the counter, as that would really designate the years for "Service" parts......
Just my .02 sense...
Shop Tips From Ford Vol. 2 No.2 February 1964 lists the new "Cobra Kits". One of these kits is the 289 HP "Cylinder Head and Valve Kit, C4OZ-6C056-A", which is a pair of 289HP heads with valves and springs installed. Alternatively, you could get the Cobra Engine Performance Kits, C4OZ-6A044-A/B/C, which included the HP heads, HP cam, and pistons for 221, 260, and 289 engines, respectively.
Since this publication precedes the introduction of the Mustang itself, it's safe to say any Mustang could have had these upgrades from day one.
One thing you need to watch, especially with the C8ZE-B, is Crane offered the "Fireball" cylinder head for years. They used HP heads, and later J-code heads, to make them. Basically they took a Service Replacement head and ported the daylights out of it, so much so that special "Fireball" headers were required. You need to be very careful when buying "289HP" heads on ebaY, because a lot of these pop up there, and they are useless without the special headers.
Couped Up
Member
Good point about the Crane heads! Thanks for the other info. as well... It tickles me, that so many hobbiest's are putting emphasis on a difference between "N.O.S.", and "Service" parts. I've always thought that if it didn't roll off the production floor, assembled to a car, that it was in fact a "Service" part, and that would place all "N.O.S." parts, in this category! So.. I guess any of the "Hipo" heads, C4OZ and later, that are not bolted to an unmolested, numbers matching motor could be considered "Service Replacement" parts?
bartl
Active Member
I would think it would have been possible to buy a set of C3OE's in the parts department of most any Ford dealer from mid-63 model year onward when the HiPo was first available in the Fairlane.
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